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Key Fob Repair: Replacing the Battery

Getting jostled around in purses and pockets keys fobs can be damaged and not register presses with accuracy. Replacing the small battery, which the majority of car fobs have in a snap-out case may fix the problem.

If the contacts on the key fob are worn, a new replacement might not be enough to revive it. This is a simple fix that you can do at home.

Replace the battery

It's possible to replace the battery if your key fob isn't working properly or takes longer to unlock or lock your vehicle than normal. It's good news that replacing the battery of your key fob is among the simplest tasks you can tackle yourself. This is a straightforward fix that will save you money on a trip to the dealer or a locksmith.

You can purchase a coin-style (CR2032) battery at any auto parts, home improvement, or general retailer. Key fobs typically come with a slot for these batteries, and opening the case to replace batteries is quite simple. Based on the brand you might need make use of a screwdriver to open the compartment.

Some key fobs come with clips that hold the battery in place; if so, gently lift these up with your fingers or with a non-metallic tool. Install the new battery, making sure to put it in the right place. Take car key fob repair of the position when you take out the old one. Avoid touching the flat surfaces of batteries since this could reduce their lifespan.

Close the case of the fob's key and test the function by pressing the button. If it doesn't work, you may need to open the fob again and check whether the new battery has been properly installed.

It could also be that a simple replacement of the battery isn't enough to fix the problem. This could be caused by physical or electrical trauma. In this case, you will have to take your key fob to a dealer or auto service center for repairs. Before you do this, there are four issues that the replacement battery can't fix. It is essential to be aware of the issues so that you are in a position to find an experienced technician should you need. You can also find out how to fix the malfunctioning transmitter of a key fob to discover the reason it's not working.

Clean the Contacts

Maintaining your key fob's cleanliness is vital to its functionality and life. Over time, the natural oils on your fingers and pockets can build up in key fob's buttons and in the crevices. This can cause the keys not to work. It's easy enough to fix all you need is some cleaning alcohol and a cotton swab.


Open the key fob first by gently prying the battery out using either a screwdriver or coin. Note the kind of battery (negative and positive side) so that you can put it back in the correct way.

Then you can make use of a cotton swab (or a small brush) to clean the buttons as well as the surrounding areas of the fob. Make sure to pay special attention to the battery's contacts, and that they are clean. After you're done, be sure to allow the fob and its components completely dry.

If your fob isn't functioning even after cleaning, you may be required to reset your system. Go through the owner's manual of your device for instructions on how to reset the system. If the key fob is dead, this might be enough to bring it back to life.

Once the key fob has been cleaned and resynched, it is a great idea to ensure regular maintenance. You can ensure that your key fob functioning for many years by wiping it with a damp towel and mild soap.

Reset the system

Despite the fact that today's high-tech key fobs are more capable, secure, and convenient than ever before, it's possible for them to run into certain issues. Luckily, the majority of the time, these issues aren't serious or complicated and are often fixed with simple methods like replacing the battery. If the issue is more serious or if the issue can't be solved by simple solutions an expert auto repair shop can repair and replace the key fob.

The device's primary function is to lock or unlock your car, but you can also make use of it to enable certain vehicle features. The key fob can be used to lower or raise a sunroof. This feature can be very useful if you need to open the roof when stuck in traffic or when your hands are full. Similarly, the key fob can be used to summon your vehicle when it is located in a tight place.

A key fob's internal circuitry and buttons could fail due to manufacturing defects or wear-and-tear. The signs could include intermittent behavior or failure to lock or unlock the car. Moisture or other electromagnetic interference sources may sometimes interfere with the proper function of a keyfob. If your key fob is damaged by dust or become wet, it must be cleaned prior to attempting to use it again.

If the device continues to behave in a strange manner after replacing the key fob or cleaning the contacts, you may need to perform a factory resetting. This will fix system issues and improve device performance.

If you're unsure how to perform the factory reset on your device, consult the device manufacturer's website or the owner's manual. Certain devices require special tools to reset them, but you'll find instructions for your specific model.

Another option to resolve problems with your key fob is to call an Apache Junction mobile car locksmith. These professionals can repair and program keyfobs for nearly all car models. They can also repair keys for cars that have chips inside them.

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